openthread: add soft float fallback for lib path calculation #1428
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Add soft float fallback to enable building from libs with softfp ABI enabled.
Code built with
soft
andsoftfp
float-abi
options can be linked together as they both use the same soft-float ABI and generate functions to pass floating-point arguments to integer registers. This is contrary to thehard
option where floating-point arguments are passed directly to FPU registers.softfp
additionally allows using hardware floating-point instructions instead of emulated ones.